maven

运用maven对java项目进行打包

概述

Java项目完成后需要进行打包发布，下面主要是运用maven进行打成tar包。详细pom文件请参考如下实例：

pom文件书写

simaplepom.xml,此部分只是打包部分不包含加载软件依赖等信息。

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <!--这里只介绍build时的部分-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-assembly-plugin</artifactId>
                <configuration>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                    <archive>
                        <manifest>
                            <mainClass>com.lakala.datamigration.Main</mainClass>
                        </manifest>
                    </archive>
                    <descriptors>
                        <descriptor>src/main/assembly/assembly.xml</descriptor>
                    </descriptors>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

在Java项目根目录中创建：mkdir src/main/assembly(也可以收到创建)

Assembly.xml

<assembly
    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
    <id>bin-${version}</id>
    <formats>
        <format>tar</format>
    </formats>
    <includeBaseDirectory>true</includeBaseDirectory>
    <dependencySets>
        <dependencySet>
            <!--将打好的jar包放在lib目录下-->
            <useProjectArtifact>true</useProjectArtifact>
            <outputDirectory>lib</outputDirectory>
        </dependencySet>
    </dependencySets>
    <fileSets>
        <fileSet>
            <directory>src/main/resources/conf</directory>
            <outputDirectory>conf</outputDirectory>
            <includes>
                <include>*.xml</include>
                <include>*.properties</include>
            </includes>
            <lineEnding>unix</lineEnding>
        </fileSet>
        <fileSet>
            <outputDirectory>/</outputDirectory>
            <includes>
                <include>README.txt</include>
            </includes>
        </fileSet>
        <fileSet>
            <directory>src/main/scripts</directory>
            <outputDirectory>bin</outputDirectory>
            <includes>
                <include>run.sh</include>
            </includes>
            <fileMode>0775</fileMode>
        </fileSet>
    </fileSets>
</assembly>

编译

在Java根目录编译：maven clean compile package -Dmaven.test.skip=true
注意：编译好的jar包和依赖包都在lib文件夹下。

任务发布执行脚本

执行脚本的命令如下：

#! /usr/bin/env bash
#start the daemodes
echo "Start the process."
SHELL_CURRENT=`dirname "${BASH_SOURCE-$0}"`
PROJECT_BIN=`cd "$SHELL_CURRENT"; pwd`
PROJECT_HOME=`dirname "$PROJECT_BIN"`
echo "${PROJECT_HOME}"
#
export JAVA_HOME=${JAVA_HOME}
java -cp ${PROJECT_HOME}/lib/*:.  com.xxx.xxx.Main